Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
  • A61Q17/005—Antimicrobial preparations
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
  • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/64—Proteins; Peptides; Derivatives or degradation products thereof
  • A61K8/645—Proteins of vegetable origin; Derivatives or degradation products thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/006—Antidandruff preparations
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/02—Preparations for cleaning the hair
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/04—Carboxylic acids or salts thereof
  • C11D1/10—Amino carboxylic acids; Imino carboxylic acids; Fatty acid condensates thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/32—Protein hydrolysates; Fatty acid condensates thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/52—Stabilizers
  • A61K2800/524—Preservatives
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q15/00—Anti-perspirants or body deodorants
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin
  • A61Q19/002—Aftershave preparations
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin
  • A61Q19/10—Washing or bathing preparations

Definitions

• the present invention relates to a detergent or cosmetic composition having anti-dandruff and/or anti-odour properties, simultaneously provided with hydrating and preservative properties.
• preservative agents which have the function of preserving the composition from pollution by bacteria and other micro-organisms, such as, for example fungi and yeasts, which can be the cause of infections in man.
• preservative agents which have the function of preserving the composition from pollution by bacteria and other micro-organisms, such as, for example fungi and yeasts, which can be the cause of infections in man.
• preservative agents which to be efficacious must often be utilised in concentrations which are irritating or sensitising for the tissue with which they come into contact.
• the present invention therefore has the purpose of providing a detergent or cosmetic composition provided with the functional properties indicated above (that is to say, anti-dandruff and/or anti-odour), which does not have the above mentioned disadvantages.
• These derivatives are salts of undecylenoil glutamate and/or undecylenoil hydrolyzate of wheat and/or rice proteins.
• the salts of undecylenoil glutamate can be obtained by the Schotten-Bauman reaction by causing the amino group of the glutamic acid to react with chloride of undecylenoil in a basic environment, according to the following reaction diagram:
• the salts of undecylenoil hydrolyzate can be obtained by the Schotten-Bauman reaction by making the amino groups present in the hydrolyzate react with undecylenoil chloride in a basic environment, according to the following reaction diagram:
• R is the peptidic residue which can be obtained by hydrolysis of rice and/or wheat proteins.
• the peptidic residue can be obtained by acid hydrolysis (in the presence of HCl) of gluten (wheat) and/or husks (rice) and subsequent filtration to separate the product from the dregs.
• hydrolysis of enzymatic type can also be utilised, exploiting the amylase and protease enzymes.
• the product obtained is a mixture of peptides having a molecular weight between 1000 and 4000 Dalton. Within the ambit of the present description this product will sometimes be indicated as “peptidic residue” and at other times as “proteic hydrolyzate” or “hydrolyzate of wheat and/or rice proteins”.
• the dissociated carboxylic groups present are neutralised by salification with a base chosen in dependence on the desired salt, for example NaOH or KOH.
• a base chosen in dependence on the desired salt, for example NaOH or KOH.
• the sodium or potassium salt is brought to a pH of 2.0-3.0 with phosphoric acid to obtain the acid form and subsequently dissolved in water and neutralised with the desired base.
• the dissociated carboxylic groups are preferably neutralised with cations selected from the group which consists of: cations belonging to the group of alkaline metals or other monovalent cations such as Cu + ; cations belonging to the group of alkaline earth metals or other bivalent cations such as Pb 2+ ; trivalent cations such as Al 3+ ; polyvalent cations such as Sn 4+ ; NH 4 + or aminic bases selected from triethanol amine, monoethanol amine, diethanol amine, monoisopropanol amine, triisopropanol amine, 2-aminobutanol, aminoethyl propandiol, arginine, lisine, ornithine, aminomethyl propanol, aminomethyl propandiol and 2-amino-2-hydroxymethyl-1,3-propandiol.
• Such neutralising cations can be utilised also in combinations with one another.
• the present invention is therefore directed to the use of a compound which is a salt of undecylenoil glutamate and/or undecylenoil hydrolyzate of wheat and/or rice proteins as a preserving and hydrating agent and simultaneously as an anti-dandruff and/or anti-odour agent, in the formulation of a detergent or cosmetic composition free from other preservative or hydrating agents, or including other preservative and/or hydrating agents at a non-efficacious concentration and/or one insufficient to confer the desired characteristics of preservability and/or hydration in a similar or corresponding composition free from the said compound.
• the present invention is also directed to a detergent or cosmetic composition provided with hydrating and preservative properties and simultaneously anti-dandruff and/or anti-odour properties, comprising, as anti-dandruff and/or anti-odour agent a compound which is a salt of undecylenoil glutamate and/or undecylenoil hydrolyzate of wheat and/or rice proteins, the said compound further having preservative and hydrating effect, the said composition being thus free from further preservative and/or further hydrating agents, or including other preservative and/or hydrating agents at non-effective concentrations and/or concentrations insufficient to confer the desired characteristics of preservability and/or hydration in a corresponding or similar composition free from the said compound.
• composition constituted by the same components in the same quantities as the composition of the invention, but which is differentiated from this by the fact that the salts of undecylenoil glutamate and/or undecylenoil hydrolyzate of wheat and/or rice proteins is substituted with an equal quantity of another anionic surfactant agent.
• this can mean that a detergent or cosmetic composition has the desired characteristics of preservability when it responds positively to the test for the evaluation of the efficacy of the preserving power.
• tests are conducted according to the indication provided by the US pharmacopaeia (USP) and or by the Cosmetic, Toiletry and Fragrance Association (CTFA).
• USP US pharmacopaeia
• CFA Cosmetic, Toiletry and Fragrance Association
• the cosmetic or detergent composition according to the invention has a pH less than or equal to 6, still more preferably a pH in the range of 4 to 6.
• preservative agents commonly utilised in detergent or cosmetic compositions of the prior art, but absent in the composition according to the invention, or at most present in non-irritant and non preserving concentrations, there are for example formaldehyde, chlorine, hypochlorite, compounds releasing chlorine, chlorine dioxide, iodine and iodophor, phenol, cresol, chlorocresol, amphoteric compounds with preservative characteristics, chlorexidine, peracetic acid and dihydroacetic acid, compounds of mercury, alcohol, sorbic acid, benzoic acid, salicylic acid, boric acid, formic acid, propionic acid and salts of these derivatives, bronopol, 5-bromo-5-nitrodioxane heaxamethylenetetra amine, DMDM hydantoin, various hydantoins such as MDM hydantoin, chloracetamide, ureas such as urea imidazolidinyl urea diazo
• non-irritant and non-preservative concentration varies in dependence on the compound considered, and can be easily determined by the man skilled in the art since the above-listed compounds are all known and usually utilised in cosmetics as preservatives.
• a detergent or cosmetic composition has the desired characteristics of hydration when it is capable of obviating the symptoms and manifestations of dry hair and skin (according to the definition of “hydrating compound” in A short textbook of cosmetology, K. F. De Polo, first edition 1998).
• the salts of undecylenoil glutamate and proteic undecylenoil hydrolyzate have such hydrating properties.
• the molecules of undecylenoil glutamate and of proteic undecylenoil hydrolyzate once in contact with the skin in fact split up into their components of proteic hydrolyzate and glutamate on one side and fatty acid on the other.
• hydrolyzed proteins of wheat and rice in contact with the skin in fact form a continuous protective layer over the corneal layer thereof protecting it from external aggressive agents and increasing the hydration by reduction of the TEWL (Trans Epidermal Water Loss). Moreover such hydrolyzed proteins are a source of amino acids which constitute 40% of the physiological hydrating factor (NMF).
• NMF physiological hydrating factor
• the glutamic acids enters into a series of biological cycles contributing to the correct cutaneous hydration and to maintenace of the natural cutaneous acidity thanks to the two carboxylic groups. It in fact constitutes 15% of the keratin and goes as far as forming part of the ⁇ ( ⁇ -glutamyl) lisine bonds present in the protein casing and keratoline which constitutes the cellular membrane of the corneocity. It can be transformed into PCA, one of the components of NMF, that is to say a set of water soluble substances responsible for the correct hydration, as well as into proline and hydroxyproline (these two amino acids are fundamental for the synthesis of collagen and elastine). The acylglutamates moreover act as selective solvents for the main components of the sebum, or the squalene, therefore leaving the functional lipids of the corneal layer which control hydration unaltered.
• the undecylenic acid component instead will perform its peculiar anti-dandruff and deodorant action.
• hydrating agents commonly utilised in detergent or cosmetic compositions of the prior art but absent in the composition according to the invention, or at most present in non-efficacious concentrations, there are for example glycerine, sorbitol, glycol propylene, polyethylene glycol with the molecular weight from 200 to 600, Sorbeth-30, urea, lactic acid and its salts, mucopolysaccharids such as ialuronic acid and condroit in sulphate, orothic acid, lanolin, petrolatum, mineral oils, occlusive substances which hydrate the skin by preventing the evaporation of water, and their mixtures.
• glycerine sorbitol
• glycol propylene polyethylene glycol with the molecular weight from 200 to 600
• Sorbeth-30 urea
• lactic acid and its salts mucopolysaccharids
• mucopolysaccharids such as ialuronic acid and condroit in sulphate,
• concentrations which are not efficacious for hydration vary in dependance on the compound considered, and can be easily determined by the man skilled in the art since the compounds listed above are all known and usually utilised in cosmetics as hydrating agents.
• Detergent or cosmetic compositions according to the invention preferably include an aqueous medium, even if the salts used can be equally used in emulsions as primary hydrophilic emulsifiers.
• the total concentration of the salts of undecylenoil glutamate and/or undecylenoil hydrolyzate of wheat and/or rice proteins in the compositions according to the invention is preferably a concentration which, itself, is sufficient to confer the characteristics of preservability, activity and desired hydration, or else such as to confer the said characteristics in combination with other preserving agents and/or hydrating agents present in concentrations themselves not sufficient to confer such characteristics.
• This concentration is preferably between 2% and 25% by weight of active substance with respect to the total composition, more preferably between 5% and 15% by weight of active substance. In this range of concentrations, in fact, the salts present are able correctly to perform all their functions.
• Detergent or cosmetic compositions according to the invention can moreover include at least one further and separate surfactant agent chosen from ionic surfactants such as, for example, alkyl sulphate salts and alkyl ether sulphate salts (for example salts of sodium, magnesium, TEA, MEA and iammonium), salts of starch/starch ether sulphates, salts of alkyl semisulphosuccinates and of alkyl sulphosuccinates, salts of alkyl ether semisulphosuccinates and of alkyl ether sulphosuccinates, salts of acyl amido semisulphosuccinates and of acyl amido sulphosuccinates, salts of dodecyl benzene sulphonic acid, salts of alkyl/alkyl ether sulpho acetates, salts of organic sulphonate molecules and/or sulphamate (for example,
• compositions of the invention are: shampoo, foam baths, foam showers, washing up liquid, liquid soaps, solid soaps, lotions, emulsions of various nature, balsams, products having simultaneously detergent and conditioning effect on the skin and/or the hair, oils, emollient and detergent milks, face cream and/or cream for the body and/or hair, detergents for intimate hygiene, bryliantine, solutions for permanent waves, hair colouring, dentifrice, medicated cosmetics, pharmaceutical products.
• the challenge test consists in monitoring the survival of the inoculations over time; such survival is indicative of the capacity for preservation of the cosmetic product during the period of use by the consumer.
• the survival of the inoculations was tested after 24 hours, 7 days and 28 days from inoculations.
• the test at 24 hours represents a datum for the purpose of evaluating the speed of the preservative system, that at 7 days indicates however the degree of risk of pollution of the product whilst the test at 28 days, as well as representing a confirmation of the previously obtained data, makes it possible to put in evidence the possible formation of resistance strains.
• Citric acid enough to bring pH to 5.0
• Cocoamedopropyl betaine (30% active material): 10%
• Disodiumlaurylethoxysemisulphosuccinate (30% active material): 6%
• Citric acid enough to bring pH to 4.5
• Citric acid enough to bring pH to 4.2
• Citric acid enough to bring pH to 5.0
• Citric acid enough to bring pH to 5.5
• Citric acid enough to bring pH to 5.0
• Citric acid enough to bring pH to 4.5
• Citric acid as required
• Cocoa starch 1%
• Citric acid enough to bring pH to 4.0

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• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• Chemical & Material Sciences (AREA)
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• General Health & Medical Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Wood Science & Technology (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Birds (AREA)
• Epidemiology (AREA)
• Dermatology (AREA)
• Cosmetics (AREA)
• Detergent Compositions (AREA)

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Citations (2)

• 2001
  • 2001-11-07 IT IT2001TO001054A patent/ITTO20011054A1/it unknown
• 2002
  • 2002-11-05 US US10/287,475 patent/US20030100457A1/en not_active Abandoned

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